Patents by Inventor Kwok-Wing Fung

Kwok-Wing Fung has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

Process for reducing discoloration of cellulosic fibers, treated at a high temperature with a solution of a polycarboxylic acid and boric acid or borate

Patent number: 5199953

Abstract: A process for reducing discoloration of fibrous cellulosic material, treated at temperatures above about 175.degree. C. with a treating solution of a polycarboxylic acid and a phosphate salt curing catalyst, comprises adding to the treating solution an inorganic boron-oxygen compound.

Type: Grant

Filed: January 10, 1992

Date of Patent: April 6, 1993

Assignee: Ortec, Inc.

Inventors: Kwok-Wing Fung, Kam H. Wong, David L. Brotherton

Process for reducing discoloration of cellulosic fibers, treated at a high temperature with a solution of a polycarboxylic acid and boric acid or borate